Today, VPNs no more remain a strange technology. VPNs now have multiple use cases, becoming an essential privacy tool for everyone. Therefore, it’s vital to know about the various VPN connection protocols to make the best of this tool. One of the most common protocols you’ll see in most VPN services is the IKEv2 protocol. (You may also frequently find it as “IKEv2/IPSec” protocol.)
This article elaborates on the IKEv2/IPSec protocol, how it works, comparison with other protocols, and much more.
IKEv2/IPSec protocol: The definition
Internet Key Exchange version 2 (IKEv2) is a popular tunneling protocol that controls request and response actions. In addition, it establishes and handles the Security Association (SA) attribute to protect the communication between two entities.
The first version, Internet Key Exchange (IKE), was introduced in 1998 as IKE version 1 (IKEv1). It was later upgraded to Internet Key Exchange version 2 (IKEv2) in 2005.